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Section 2
N/A
28
Mathematics
12th Grade
01/13/2011

Additional Mathematics Flashcards

 


 

Cards

Term
Frequency
Definition
partitions data into classes or intervals and shows how many data values are in each class.
Term
Frequency Distribution
Definition
The classes or intervals are constructed so that each data value falls into exactly one class.
Term
Class Width
Definition
It is the difference between the lower class limit of one class and the lower class limit of the next class.
Term
Lower Class Limit, Upper Class Limit
Definition
Lowest data value that can fit in a class, the highest data value that can fit in a class.
Term
Class Frequency
Definition
The number of tally marks corresponding to a class.
Term
Class Midpoint
Definition
add the lower and upper class limits of one class then divide by 2.
Term
Class Mark
Definition
Center of Each Class
Term
Frequency Table
Definition
Partitions data into classes or intervals and shows how many data values are in each class.
Term
Class Boundaries
Definition
the halfway point between the upper limit of of one class and the lower limit of the next class.
Term
Histogram
Definition
Provides visual displays of data organized into frequency tables.
Term
Relative - Frequency Table
Definition
A frequency table that displays each relative frequency.
Term
Relative - Frequency Histogram
Definition
A graph where the height of the bar represents the class frequency, the height of the bar is the relative frequency for that class.
Term
Symmetric Distribution
Definition
A histogram which both sides are the same when the graph is folded vertically down the middle
Term
Uniform Distribution
Definition
A histogram in which every class has equal frequency. The bars would be equal of height.
Term
Skewed Left
Definition
A histogram in which one tail is stretched out longer than the other. This would be the left side which is stretched out longer.
Term
Skewed Right
Definition
A histogram in which one tail is stretched out longer than the other. This would be the right side which is stretched out longer.
Term
Bimodal Distribution
Definition
A histogram in which the two classes with the largest frequencies are separated by at least one class.
Term
Dotplot
Definition
Display the data along a horizontal axis. Then plot each data with a dot or point above the corresponding value on the horizontal axis. For repeated data values, stack the dots.
Term
Bar Graph
Definition
Vertical or horizontal bars, the length of the bars represent values of the variable being displayed.
Term
Pareto Chart
Definition
A bar graph in which the bar height represents frequency of an event. In addition, the bars are arranged from left to fight according to decreasing height.
Term
Pie Chart or Circle Graph
Definition
Wedges of a circle visually display proportional parts of the total population that share a common characteristic.
Term
Time - Series Graph
Definition
data are plotted in order of occurrence at regular intervals over a period of time.
Term
Time Series
Definition
Data sets composed of similar measurements taken at regular intervals over time are called time series.
Term
EDA
Definition
stem-and-leaf displays, and in box-and-whisker plots.
Term
Stem
Definition
leftmost part of the digits from data
Term
Leaf
Definition
Rightmost part of the digits from data
Term
Stem - And - Leaf Display
Definition
a method of exploratory data analysis that is used to rank-order and arrange data into groups.
Term
Back - To - Back Stem Plot
Definition
To have two stems for the data
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